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From Mariangela Hills <mariang...@wso2.com>
Subject Re: [Wiki] Fault Handling Scenarios
Date Fri, 23 May 2014 06:32:31 GMT
Updated the doc based on Lahiru's comment [1].

[1]
https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Fault+Handling+Process

Regards,
Mariangela




*--*
Mariangela Hills
Senior Technical Writer

*WSO2, Inc.*lean.enterprise.middleware.
m: +94 773 500185
w: http://wso2.com
<http://wso2.com/events/>


On Fri, May 23, 2014 at 11:29 AM, Udara Liyanage <udara@wso2.com> wrote:

> Hi,
>
> Thanks Lahiru and Nirmal for the clarification.
>
>
> On Fri, May 23, 2014 at 11:20 AM, Nirmal Fernando <nirmal@wso2.com> wrote:
>
>> Yes, otherwise there were synchronization issues.
>>
>>
>> On Fri, May 23, 2014 at 11:17 AM, Lahiru Sandaruwan <lahirus@wso2.com>wrote:
>>
>>>
>>>
>>>
>>> On Fri, May 23, 2014 at 11:03 AM, Udara Liyanage <udara@wso2.com> wrote:
>>>
>>>> Hi Lahiru,
>>>>
>>>> If the instance is still running, Auto-scaler will terminate the
>>>> instance and remove all the in-memory content related to that member.
>>>> Thereafter,* based on the Auto-scaler rules, Auto-scaler will decide
>>>> whether another instance should be spawned* in the cluster.
>>>>
>>>> In a faulty member scenario: when the faulty  instance is terminated
>>>> ,AS instantly spawn another instance in the same partition. Doesn't it. AS
>>>> rules have no connection for faulty member handling AFAIK.
>>>>
>>>> Please clarify.
>>>>
>>>>
>>> Faulty event handler will terminate the instance and clear internal
>>> contexts. We decided to let the rules handle thereafter.
>>>
>>>>
>>>>
>>>> On Fri, May 23, 2014 at 10:54 AM, Lahiru Sandaruwan <lahirus@wso2.com>wrote:
>>>>
>>>>> Nice work Mari,
>>>>>
>>>>> Shall we replace 'and/or' with or?
>>>>>
>>>>> Because the instance is down means the CA is down.
>>>>>
>>>>>
>>>>> On Fri, May 23, 2014 at 10:50 AM, Mariangela Hills <
>>>>> mariangela@wso2.com> wrote:
>>>>>
>>>>>> Based on Lahiru's suggestion I added Stratos fault handling scenarios
>>>>>> [1]. In addition, based on Imesh's input yesterday, I updated this
doc with
>>>>>> information on the Ping mechanism to handle the scenario when MB
is down.
>>>>>> Are there any other scenarios that we need to address in this page?
>>>>>>
>>>>>>
>>>>>>
>>>>>> [1]
>>>>>> https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Fault+Handling+Process
>>>>>>
>>>>>> Regards,
>>>>>> Mariangela
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> *--*
>>>>>> Mariangela Hills
>>>>>> Senior Technical Writer
>>>>>>
>>>>>> *WSO2, Inc.*lean.enterprise.middleware.
>>>>>> m: +94 773 500185
>>>>>> w: http://wso2.com
>>>>>>  <http://wso2.com/events/>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> --
>>>>> Lahiru Sandaruwan
>>>>> Committer and PMC member, Apache Stratos,
>>>>> Senior Software Engineer,
>>>>> WSO2 Inc., http://wso2.com
>>>>> lean.enterprise.middleware
>>>>>
>>>>> email: lahirus@wso2.com cell: (+94) 773 325 954
>>>>> blog: http://lahiruwrites.blogspot.com/
>>>>> twitter: http://twitter.com/lahirus
>>>>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Udara Liyanage
>>>> Software Engineer
>>>>  WSO2, Inc.: http://wso2.com
>>>> lean. enterprise. middleware
>>>>
>>>> web: http://udaraliyanage.wordpress.com
>>>> phone: +94 71 443 6897
>>>>
>>>
>>>
>>>
>>> --
>>> --
>>> Lahiru Sandaruwan
>>> Committer and PMC member, Apache Stratos,
>>> Senior Software Engineer,
>>> WSO2 Inc., http://wso2.com
>>> lean.enterprise.middleware
>>>
>>> email: lahirus@wso2.com cell: (+94) 773 325 954
>>> blog: http://lahiruwrites.blogspot.com/
>>> twitter: http://twitter.com/lahirus
>>> linked-in: http://lk.linkedin.com/pub/lahiru-sandaruwan/16/153/146
>>>
>>>
>>
>>
>> --
>>
>> Thanks & regards,
>> Nirmal
>>
>> Senior Software Engineer- Platform Technologies Team, WSO2 Inc.
>> Mobile: +94715779733
>> Blog: http://nirmalfdo.blogspot.com/
>>
>>
>>
>
>
> --
>
> Udara Liyanage
> Software Engineer
> WSO2, Inc.: http://wso2.com
> lean. enterprise. middleware
>
> web: http://udaraliyanage.wordpress.com
> phone: +94 71 443 6897
>

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